MB&F Special Projects SP1.PL.B
The MB&F Special Projects SP1.PL.B takes an 18 mm watch band.

MB&F · Special Projects
- Lug width
- 18 mm
- Case diameter
- 38 mm
- Reference
- SP1.PL.B
- Family
- Special Projects
- Case material
- Platino
- Model
- SP One Platinum
- Year
- 2025
Bands that fit
Cut and stitched in Milano, in the width this watch takes.
Will a strap close on your wrist?
Set for this watch: 38 mm of case and 18 mm between the lugs. Add your wrist and see where a standard strap would close.
mm
Filled in with the case diameter, which is what we hold for this reference. Measure the watch tip to tip for the exact answer: it is usually a few mm more.
Enter your wrist measurement to see whether a standard 75/115 mm strap closes on you, and where.
Sizing notes
- 18 mm is the gap between the lugs, so a 18 mm band goes in without adapters. Whether it sits flush against a 38 mm case depends on how that case is shaped.
- 18 mm is not a common size: only 3,965 of the 41,485 watches measured take it (9.6%), so ready-made choice at this width is narrower than at 20 or 22 mm. Every watch that takes 18 mm →
Hammered Pink Strap with Ecru Stitching
Vintage Brown Calfskin Strap — Natural Patina
Single Pass Hammered Yellow Calfskin Strap
Red Hammered Calfskin Single Pass Watch Strap
Millenium Cognac Alligator Strap